package com.hz.ruoyilgorder.config;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.CachingConfigurerSupport;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheConfiguration;
import org.springframework.data.redis.cache.RedisCacheWriter;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.connection.RedisStandaloneConfiguration;
import org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;

import java.time.Duration;

/***
 *  redis序列化配置
 */



@Configuration
//@Component
//@EnableCaching //开启缓存
public class RedisConfig extends CachingConfigurerSupport {
//读取resis配置  yml里面的配置
    @Value("${spring.redis.host}")
    private String host;
    @Value("${spring.redis.password}")
    private String password;
    @Value("${spring.redis.port}")
    private int port;
//    @Value("${spring.redis.database}")
//    private int database;

    @Bean
    public CacheManager cacheManager() {
        //默认配置
        RedisCacheConfiguration defaultCacheConfig = RedisCacheConfiguration.defaultCacheConfig()
                .entryTtl(Duration.ofSeconds(60)) //默认时间
                .computePrefixWith(cacheName -> {
                    return "myCache:" + cacheName;
                });

        MyRedisCacheManager myRedisCacheManager =
                new MyRedisCacheManager(
                        RedisCacheWriter.nonLockingRedisCacheWriter(redisConnectionFactory())
                        ,defaultCacheConfig);
        return myRedisCacheManager;
    }


    @Bean
    public RedisConnectionFactory redisConnectionFactory() {
        //创建连接Redis工厂
        RedisStandaloneConfiguration redisStandaloneConfiguration = new RedisStandaloneConfiguration();
        redisStandaloneConfiguration.setHostName(host);
        redisStandaloneConfiguration.setPort(port);
//        redisStandaloneConfiguration.setDatabase(database);
        redisStandaloneConfiguration.setPassword(password);

        LettuceConnectionFactory factory = new LettuceConnectionFactory(redisStandaloneConfiguration);
        return factory;
    }




    /**
     * redisTemplate 默认使用JDK的序列化机制, 存储二进制字节码, 所以自定义序列化类
     * @param redisConnectionFactory redis连接工厂类
     * @return RedisTemplate
     */
    @Bean
    public RedisTemplate<Object, Object> redisTemplate(RedisConnectionFactory
                                                               redisConnectionFactory) {
        RedisTemplate<Object, Object> redisTemplate = new RedisTemplate<>();
        redisTemplate.setConnectionFactory(redisConnectionFactory);
// 使用Jackson2JsonRedisSerialize 替换默认序列化
        Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new
                Jackson2JsonRedisSerializer(Object.class);
        ObjectMapper objectMapper = new ObjectMapper();
        objectMapper.setVisibility(PropertyAccessor.ALL,
                JsonAutoDetect.Visibility.ANY);
        objectMapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
        jackson2JsonRedisSerializer.setObjectMapper(objectMapper);
// 设置value的序列化规则和 key的序列化规则
        redisTemplate.setKeySerializer(new StringRedisSerializer());
        redisTemplate.setValueSerializer(jackson2JsonRedisSerializer);
        redisTemplate.afterPropertiesSet();
        return redisTemplate;
    }
}
